Need some help code 41 & 91 foxbody
Noticed the kids car runnng rough so started looking into it and after a little while checking things over, replacing some vac lines I知 becoming stumped or just crazy staring at it.
1990 gt ., 5 speed ( think it was converted, few hints and a a9p)mostly stock , cobra intake, headers,exhaust , no smog stuff, timing is at 12, fuel pressure with vac off/ running is 41 with vac on 39段sh, Cannot find any vac leak per say. No cel light on, car passed cylinder balance test, twice
Act, ect, Maf all check out test/volt wise , all plugs are really white/lean
Now car runs rough on cold start, usually takes 3 times of starting then dying until it will hold a ####ty rough idle, 800段sh with vac around 14.5-15.5
Now trying to probe the computer while running to see what volts I知 getting, I am getting nothing on either pin 29 & 43 , tried 2 different times and nothing
So to test for resistance or a break short what do I need to test from those pins on computer ( hooked up or not?) to the body side o2 harness?
Also what wires get power and how much at the actual #o2 connector? Whites ?
Any help would be great , I値l try to get back ASAP but leaving for vacation in a few days